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II/312 GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)
GALEX catalogs of UV sources Bianchi L., Herald J., Efremova B., Girardi L., Zabot A., Marigo P., Conti A., Shiao B. <Astrophys. Space Sci. 335, 161 (2011)> =2011Ap&SS.335..161B =2012yCat.2312....0B
ADC_Keywords: Photometry, ultraviolet ; Ultraviolet Mission_Name: GALEX Keywords: Astronomical Data Bases: catalogues ; Stars: white dwarfs ; Stars: evolution ; Galaxy: stellar content ; Ultraviolet: stars ; Galaxies: Milky Way Description: The Galaxy Evolution Explorer (GALEX) is an ultraviolet space telescope launched in 2003. It observes in 2 ultraviolet bands, FUV (far-UV) and NEV (near-UV), which characteristics are: -------------------------------------------------------------------- FUV NUV -------------------------------------------------------------------- Bandwidth 1344-1786 1771-2831 (Å) Effective wavelength 1538.6 2315.7 (Å) Astrometry (R<0.6deg) 0.59 0.49 (arcsec) Photometry 0.05 0.03 (ABmag) Zero point 18.82 20.08 (ABmag) Image resolution 4.2 5.3 (arcsec/pix) Spectral resolution 200 118 (δλ/λ) -------------------------------------------------------------------- Two catalogs of UV sources from GALEX surveys are provided: * the All-sky Imaging Survey (AIS), containing 65.3million sources over 21435 square degrees, has a 5σ depth in FUV/NUV of 19.9/20.8 (AB magnitudes); * the Medium-depth Imaging Survey (MIS), with 12.6million sources, covers 1579 square degrees and has a 5σ depth in FUV/NUV of 22.6/22.7 (AB magnitudes). See also the description by Bianchi et al. (2011MNRAS.411.2770B) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file ais.sam 407 1000 Sample of the AIS (All-sky Imaging Survey) (out of 65,266,291 sources) mis.sam 405 1000 Sample of the MIS (Medium-depth Imaging Survey) (out of 12,597,912 sources)
See also: http://www.galex.caltech.edu/ : the GALEX home page at Caltech http://galex.stsci.edu/ : the GALEX catalogues in MAST (StScI) II/59 : Catalogue of stellar UV fluxes (TD1) (Thompson+ 1978) II/67 : Ultraviolet Spectrophotometric Catalogue from the OAO Satellite II/83 : OAO2 filter Photometry of 531 stars (Code+ 1980) Byte-by-byte Description of file: ais.sam
Bytes Format Units Label Explanations
1- 10 F10.6 deg RAdeg Right ascension (J2000) (alpha_j2000) (G1) 12- 21 F10.6 deg DEdeg Declination (J2000) (delta_j2000) (G1) 23- 28 F6.3 mag FUV ? GALEX/FUV calibrated AB magnitude (fuv_mag) 30- 35 F6.3 mag NUV ? GALEX/NUV calibrated AB magnitude (nuv_mag) 37- 41 F5.3 mag e_FUV ? Mean error on FUV (fuv_magerr) 43- 47 F5.3 mag e_NUV ? Mean error on NUV (nuv_magerr) 49- 67 A19 --- objid Galex Global Object ID (G2) 69- 73 I5 --- tile Tile number (16bits) 76- 79 I4 --- img Image number (12bits) 82- 83 I2 --- sv sub-visit number (5bits) 85- 92 F8.6 deg r.fov distance from center of field (fov_radius) 94 I1 --- b [1/3] bands: 1=NUV, 2=FUV, 3=both 96-101 F6.3 mag E(B-V) Galactic reddening inferred from 100um dust emission maps (E_bv) 103-109 F7.3 mag FUV.b ? pipeline-chosen "best" raw magnitude in FUV (mag_auto or mag_isocor) (fuvmagbest) (G4) 111-116 F6.3 mag e_FUV.b ? Mean error on FUV.b (fuvmagerrbest) 118-124 F7.3 mag NUV.b ? pipeline-chosen "best" NUV raw magnitude (mag_auto or mag_isocor) (nuvmagbest) (G4) 126-131 F6.3 mag e_NUV.b ? Mean error on NUV.b (nuvmagerrbest) 133-139 F7.3 mag FUV.a ? FUV Kron-like elliptical aperture raw magnitude (fuvmagauto) (G4) 141-146 F6.3 mag e_FUV.a ? Mean error on FUV.a (fuvmagerrauto) 148-154 F7.3 mag NUV.a ? NUV Kron-like elliptical aperture raw magnitude (nuvmagauto) (G4) 156-161 F6.3 mag e_NUV.a ? Mean error on NUV.a (nuvmagerrauto) 163-169 F7.3 mag FUV.4 ? FUV raw magnitude in aperture of diameter 8pixels (fuvmagaper_4) (G4) 171-176 F6.3 mag e_FUV.4 ? Mean error on FUV.4 (fuvmagerraper_4) 178-184 F7.3 mag NUV.4 ? NUV raw magnitude in aperture of diameter 8pixels (nuvmagaper_4) (G4) 186-191 F6.3 mag e_NUV.4 ? Mean error on NUV.4 (nuvmagerraper_4) 193-199 F7.3 mag FUV.6 ? FUV raw magnitude in aperture of diameter 17pixels (fuvmagaper_6) (G4) 201-206 F6.3 mag e_FUV.6 ? Mean error on FUV.6 (fuvmagerraper_6) 208-214 F7.3 mag NUV.6 ? FUV raw magnitude in aperture of diameter 17pixels (nuvmagaper_6) (G4) 216-221 F6.3 mag e_NUV.6 ? Mean error on NUV.6 (nuvmagerraper_6) 225-227 I3 --- Fafl ? FUV artifact flag (fuv_artifact) (G3) 229-231 I3 --- Nafl ? NUV artifact flag (nuv_artifact) (G3) 236-237 I2 --- Fexf SExtractor extraction flags (fuv_flags) (G5) 240-241 I2 --- Nexf SExtractor extraction flags (nuv_flags) (G5) 243-254 E12.5 uJy Fflux ? FUV calibrated flux (fuv_flux) 256-267 E12.5 uJy e_Fflux ? Mean error on Fflux (fuv_fluxerr) 269-280 E12.5 uJy Nflux ? NUV calibrated flux (nuv_flux) 282-293 E12.5 uJy e_Nflux ? Mean error on Nflux (nuv_fluxerr) 296-303 F8.2 pix FXpos ? object position along x in FUV (fuvximage) 305-312 F8.2 pix FYpos ? object position along y in FUV (fuvyimage) 314-321 F8.2 pix NXpos ? object position along x in NUV (nuvximage) 323-330 F8.2 pix NYpos ? object position along y in NUV (nuvyimage) 332-339 F8.3 pix Fima ? FWHM of FUV image (fuvfwhmimage) 341-348 F8.3 pix Nima ? FWHM of NUV image (nuvfwhmimage) 350-356 F7.2 arcsec Fr ? Size of FUV source (fuvfwhmworld) 358-364 F7.2 arcsec Nr ? Size of NUV source (nuvfwhmworld) 367-386 A20 --- phID Pointer to photoExtract Table (photoextractid) 387-396 F10.6 deg fRAdeg Field center RA (avaspra) 398-407 F10.6 deg fDEdeg Field center Declination (avaspdec)
Byte-by-byte Description of file: mis.sam
Bytes Format Units Label Explanations
1- 10 F10.6 deg RAdeg Right ascension (J2000) (alpha_j2000) (G1) 12- 21 F10.6 deg DEdeg Declination (J2000) (delta_j2000) (G1) 23- 28 F6.3 mag FUV ? GALEX/FUV calibrated AB magnitude (fuv_mag) 30- 35 F6.3 mag NUV ? GALEX/NUV calibrated AB magnitude (nuv_mag) 37- 41 F5.3 mag e_FUV ? Mean error on FUV (fuv_magerr) 43- 47 F5.3 mag e_NUV ? Mean error on NUV (nuv_magerr) 49- 67 A19 --- objid Galex Global Object ID (G2) 69- 73 I5 --- tile Tile number (16bits) 76- 79 I4 --- img Image number (12bits) 81- 88 F8.6 deg r.fov distance from center of field (fov_radius) 90 I1 --- b [1/3] bands: 1=NUV, 2=FUV, 3=both 92- 97 F6.3 mag E(B-V) Galactic reddening inferred from 100um dust emission maps (E_bv) 99 A1 --- sp [0/1] 1 if a spectrum exists (istherespectrum) 101-107 F7.3 mag FUV.b ? pipeline-chosen "best" raw magnitude in FUV mag_auto or mag_isocor) (fuvmagbest) (G4) 109-114 F6.3 mag e_FUV.b ? Mean error on FUV.b (fuvmagerrbest) 116-122 F7.3 mag NUV.b ? pipeline-chosen "best" NUV raw magnitude (mag_auto or mag_isocor) (nuvmagbest) (G4) 124-129 F6.3 mag e_NUV.b ? Mean error on NUV.b (nuvmagerrbest) 131-137 F7.3 mag FUV.a ? FUV Kron-like elliptical aperture raw magnitude (fuvmagauto) (G4) 139-144 F6.3 mag e_FUV.a ? Mean error on FUV.a (fuvmagerrauto) 146-152 F7.3 mag NUV.a ? NUV Kron-like elliptical aperture raw magnitude (nuvmagauto) (G4) 154-159 F6.3 mag e_NUV.a ? Mean error on NUV.a (nuvmagerrauto) 161-167 F7.3 mag FUV.4 ? FUV raw magnitude in aperture of diameter 8pixels (fuvmagaper_4) (G4) 169-174 F6.3 mag e_FUV.4 ? Mean error on FUV.4 (fuvmagerraper_4) 176-182 F7.3 mag NUV.4 ? NUV raw magnitude in aperture of diameter 8pixels (nuvmagaper_4) (G4) 184-189 F6.3 mag e_NUV.4 ? Mean error on NUV.4 (nuvmagerraper_4) 191-197 F7.3 mag FUV.6 ? FUV raw magnitude in aperture of diameter 17pixels (fuvmagaper_6) (G4) 199-204 F6.3 mag e_FUV.6 ? Mean error on FUV.6 (fuvmagerraper_6) 206-212 F7.3 mag NUV.6 ? FUV raw magnitude in aperture of diameter 17pixels (nuvmagaper_6) (G4) 214-219 F6.3 mag e_NUV.6 ? Mean error on NUV.6 (nuvmagerraper_6) 223-225 I3 --- Fafl ? FUV artifact flag (fuv_artifact) (G3) 227-229 I3 --- Nafl ? NUV artifact flag (nuv_artifact) (G3) 234-235 I2 --- Fexf SExtractor extraction flags (fuv_flags) (G5) 238-239 I2 --- Nexf SExtractor extraction flags (nuv_flags) (G5) 241-252 E12.5 uJy Fflux ? FUV calibrated flux (fuv_flux) 254-265 E12.5 uJy e_Fflux ? Mean error on Fflux (fuv_fluxerr) 267-278 E12.5 uJy Nflux ? NUV calibrated flux (nuv_flux) 280-291 E12.5 uJy e_Nflux ? Mean error on Nflux (nuv_fluxerr) 294-301 F8.2 pix FXpos ? object position along x in FUV (fuvximage) 303-310 F8.2 pix FYpos ? object position along y in FUV (fuvyimage) 312-319 F8.2 pix NXpos ? object position along x in NUV (nuvximage) 321-328 F8.2 pix NYpos ? object position along y in NUV (nuvyimage) 330-337 F8.3 pix Fima ? FWHM of FUV image (fuvfwhmimage) 339-346 F8.3 pix Nima ? FWHM of NUV image (nuvfwhmimage) 348-354 F7.2 arcsec Fr ? Size of FUV source (fuvfwhmworld) 356-362 F7.2 arcsec Nr ? Size of NUV source (nuvfwhmworld) 365-384 A20 --- phID Pointer to photoExtract Table (photoextractid) 385-394 F10.6 deg fRAdeg Field center RA (avaspra) 396-405 F10.6 deg fDEdeg Field center Declination (avaspdec)
Global Notes: Note (G1): Position of the NUV source, or FUV if seen in FUV only Note (G2): the objid number is a 64-bit integer composed by 9 numbers (≪ is the shift operator, i.e. ≪n means multiplied by 2n): objid = (vsn≪61) + (tile≪45) + (type≪43) + (ow≪41) + (prod≪37) + (img≪25) + (try≪22) + (band≪20) + xid vsn = version number of the pipeline tile = Tile or field or target number type = Observation type (00=single,01=AIS(multi)) ow = optics wheel position (01=direct,10=grism,11=opaque,00=undefined) prod = product number (visits, best, etc) img = visit/sub-visit number (when type=01: 5 bit subvis + 7 bit visit) try = try (processing) number band = band: 01=nuv,10=fuv,11=both,00=undefined) xid = Extraction ID Note (G3): The artifact flag is defined within a 3x3pix box in the image, centered on the source centroid pixel. It is made of 10 bits with the following meaning: 1 = (edge) Detector bevel edge reflection (NUV only). 2 = (window) Detector window reflection (NUV only) 4 = (dichroic) Dichroic reflection. 8 = (varpix) Variable pixel based on time slices. 16 = (brtedge) Bright star near field edge (NUV only) 32 = Detector rim(annulus) proximity(>0.6 deg fld ctr) 64 = (dimask) dichroic reflection artifact mask flag 128 = (varmask) Masked pixel determined by varpix. 256 = (hotmask) Detector hot spots. 512 = (yaghost) Possible ghost image from YA slope. Note (G4): raw magnitudes do not take the zero points into account. Note (G5): SExtractor flags are (Bertin and Arnouts 1996A&AS..117..393B): 1 = The object has neighbors, bright and close enough to significantly bias the photometry, or bad pixels. 2 = The object was originally blended with another one. 4 = At least one pixel of the object is saturated (or very close to). 8 = The object is truncated (too close to an image boundary). 16 = Object's aperture data are incomplete or corrupted. 32 = Object's isophotal data are incomplete or corrupted.
History: From http://archive.stsci.edu/prepds/
(End) Francois Ochsenbein [CDS] 14-May-2012
| The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line |
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